How to Create a GraphQL API in Kotlin
https://habrahabr.ru/post/326986/
GitHub GraphQL API (https://developer.github.com/v4/explorer/)
[https://habr.com/company/jugru/blog/428517/]
Libraries for running GraphQL in Kotlin
[https://github.com/ExpediaGroup/graphql-kotlin]
What is GraphQL: History, Components, and Ecosystem [https://levelup.gitconnected.com/what-is-graphql-87fc7687b042]
Миграция REST API на GraphQL [ https://nuancesprog.ru/p/4417 ]
Эмпирический анализ схем GraphQL. Часть 1 [ https://nuancesprog.ru/p/5832 ] [ https://nuancesprog.ru/p/5843 ]